309161249097 has 8 divisors (see below), whose sum is σ = 430137390144. Its totient is φ = 197146303728.

The previous prime is 309161249087. The next prime is 309161249153. The reversal of 309161249097 is 790942161903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 309161249097 - 2²⁰ = 309160200521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (309161249087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240298838 + ... + 2240298975.

It is an arithmetic number, because the mean of its divisors is an integer number (53767173768).

Almost surely, 2^309161249097 is an apocalyptic number.

It is an amenable number.

309161249097 is a deficient number, since it is larger than the sum of its proper divisors (120976141047).

309161249097 is a wasteful number, since it uses less digits than its factorization.

309161249097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480597839.

The product of its (nonzero) digits is 734832, while the sum is 51.

The spelling of 309161249097 in words is "three hundred nine billion, one hundred sixty-one million, two hundred forty-nine thousand, ninety-seven".